Home / 21,476.46-32,172.93-12,087.84

Finding the Fourth Proportional to 21,476.46, 32,172.93 and 12,087.84

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Solution

The fourth proportional to 21,476.46, 32,172.93 and 12,087.84 is: 18,108.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,476.46 : 32,172.93 = 12,087.84 : x
  2. Step 2: Convert to fraction form
    21,476.46/32,172.93 = 12,087.84/x
  3. Step 3: Cross multiply
    21,476.46x = 32,172.93 × 12,087.84
  4. Step 4: Simplify right side
    21,476.46x = 388,901,230.17
  5. Step 5: Solve for x
    x = 388,901,230.17/21,476.46
  6. Step 6: Final answer
    x = 18,108.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.